must have or must’ve* common misconception that uv sound you hear after the must/should/would/could all that.. is just an apostrophe and ve….for some reason the same people who dont know/care about that are the ones who don’t know that there they’re and their are actually all different. and also that your and you’re mean 2 different things too. fuckin crazy right ? actually having paid attention in the 3rd grade ? insane to think some people did that.